Explanation
Expresses the idea of 'if it comes to...; when we talk about...; in the case of...'.
Formation
Verb-casual + となれば, い-Adjective + となれば, な-Adjective + だとなれば, Noun + だとなれば
Detailed explanation
The ～となれば grammar point is used to express a situation where a particular case or condition brings about a certain result or consequence. It translates as 'if it comes to...; when we talk about...; in the case of...' in English.
Examples
Kare ga riidaa to nareba, purojekuto wa seikou suru deshou.
If he becomes the leader, the project will probably succeed.
Ashita ga ame da to nareba, pikunikku wo kyanseru shimashou.
If it turns out to be raining tomorrow, let's cancel the picnic.
Kono shigoto ga owatta to nareba, kyuuka wo toru koto ga dekimasu.
If this job is over, you can take a vacation.
Sono tesuto ga muzukashii to nareba, yori issou benkyou shinakereba naranai.
If that test is difficult, we must study all the more.
Practice
Grammar content sourced from hanabira.org.